Detonability of natural gas–air mixtures

Gamezo, Vadim N.; Zipf, R. Karl; Sapko, Michael J.; Marchewka, W.; Mohamed, Khaled; Oran, Elaine S.; Kessler, David A.; Weiss, Eric S.; Addis, James D.; Karnack, F.; Sellers, D.D.

doi:10.1016/j.combustflame.2011.08.009

Cited by 35 publications

(23 citation statements)

References 26 publications

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“…To remedy this noise problem, the pressure sensor was decoupled from the GETF surface by suspending it over a hole and using a special bracket equipped with double-studded silicone gel antivibration mounts. [See Zipf et al (2011) and Gamezo et al (2012) for more details. ]…”

Section: Reducing Vibrationsmentioning

confidence: 99%

“…Approximately 30 separate experiments were performed with up to two bags. The procedures for these experiments were reported in Gamezo et al (2012).…”

Section: Absolute Detonability and Its Importance To Mining Safetymentioning

confidence: 99%

“…Physical parameters of GETF are summarized in Table 1 and described in detail by Gamezo et al (2012Gamezo et al ( , 2013 and Zipf et al (2013Zipf et al ( , 2014. The main part of GETF is the 73-m long steel pipe with internal diameter 1.05 m and the wall thickness 9.5 mm.…”

Section: The Gas Explosion Text Facility (Getf)mentioning

confidence: 99%

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Large-Scale Experiments and Absolute Detonability of Methane/Air Mixtures

Oran

Gamezo

Zipf

2014

Combustion Science and Technology

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The Gas Explosions Research Facility at Lake Lynn Experimental Mines was used to determine the detonability limit of methane for a 1-meter diameter tube as a function of the percent of methane in air. The measurements showed detonation limits of 5.3% (lean) and 15.6% (rich). A method for extrapolating these limits to larger systems, more relevant to coal mine tunnels, was proposed based on a simple scaling law and some empirical information on the number of cells required for a detonation to propagate in closed, open, and partially open geometries. The scaling law reproduces the measured detonation-cell sizes measured in the 1-m tube. Applying this to a tunnel the size of a coal mine produces a detonability limit less than the currently measured flammability limit for methane/air at atmospheric conditions, which raises interesting questions for detonation and combustion theory and suggests measurements in larger tubes.

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Section: Reducing Vibrationsmentioning

confidence: 99%

“…Approximately 30 separate experiments were performed with up to two bags. The procedures for these experiments were reported in Gamezo et al (2012).…”

Section: Absolute Detonability and Its Importance To Mining Safetymentioning

confidence: 99%

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Large-Scale Experiments and Absolute Detonability of Methane/Air Mixtures

Oran

Gamezo

Zipf

2014

Combustion Science and Technology

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“…One article in this issue discusses the use of plasmas for control. [20]; triangles, Matsui [21]; circles, Gamezo et al [22]). …”

Section: Other Future Research Directionsmentioning

confidence: 99%

“…The value of this limiting diameter depends on the composition of the mixture. Figure 2 is a graph of experimental results for the value of 1/d at this critical diameter for methane-air mixtures initially at room temperature and normal atmospheric pressure [20][21][22]. It has been standard procedure to extrapolate such plots to 1/d = 0 to define detonability limits of combustible mixtures in the open.…”

Section: Other Future Research Directionsmentioning

confidence: 99%

The physics, chemistry and dynamics of explosions

Oran

Williams

2012

Phil. Trans. R. Soc. A.

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The motivation for devoting a Theme Issue to explosions is discussed. As subsequent articles in the issue are written with the assumption that the reader has had a certain amount of previous exposure to the subject, some of the history and necessary background information are presented here. The topics on explosions that will be encountered in the remaining articles are previewed. Finally, several important future outstanding research problems, beyond those addressed in the following articles, are discussed, with the objective of complementing the coverage of explosions in this issue.

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Confined Gas and Dust Explosions

Salzano¹

2014

Reference Module in Chemistry, Molecular Sciences and Chemical Engineering

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Detonability of natural gas–air mixtures

Cited by 35 publications

References 26 publications

Large-Scale Experiments and Absolute Detonability of Methane/Air Mixtures

Large-Scale Experiments and Absolute Detonability of Methane/Air Mixtures

The physics, chemistry and dynamics of explosions

Confined Gas and Dust Explosions

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